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Proceedings Paper

Nonlinear optical properties of copolyesters containing azobenzene functionality and chiral groups
Author(s): D. Bahulayan; Vinoy Thomas; K. Sreekumar
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Paper Abstract

The synthesis and characterization of a series of new copolyesters containing azo mesogenic groups and chiral building blocks are reported. The polyesters were prepared by the condensation of bis(4-hydroxyphenyl)azo 2,2'- dinitro(3,5,3',5'-tetramethyl)diphenylmethane, terephthaloyl chloride and 1,4;3,6-dianhydro-D-sorbitol. The polysters showed higher thermal and photochemical stability with high values of glass transition temperature. DSC studies showed liquid crystalline behavior over a wide range. High values of second order nonlinear susceptibilities were recorded as a function of the molar proportion of isosorbide units.

Paper Details

Date Published: 16 April 1998
PDF: 5 pages
Proc. SPIE 3321, 1996 Symposium on Smart Materials, Structures, and MEMS, (16 April 1998); doi: 10.1117/12.305577
Show Author Affiliations
D. Bahulayan, Univ. of Kerala (India)
Vinoy Thomas, Univ. of Kerala (India)
K. Sreekumar, Univ. of Kerala (India)

Published in SPIE Proceedings Vol. 3321:
1996 Symposium on Smart Materials, Structures, and MEMS
Vasu K. Aatre; Vijay K. Varadan; Vasundara V. Varadan, Editor(s)

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